RG59 Coaxial Cable ( PER METER )

The RG59 coaxial cable is a specific type of coaxial cable commonly used for low-power video and radio frequency (RF) signal connections, particularly over shorter distances.

It is easily identifiable as a coaxial cable, meaning it has a central conductor surrounded by an insulating layer, which is then encased by a shield (outer conductor), all covered by an outer protective jacket.

Core Electrical Specifications

Parameter	Typical Value	Notes
Characteristic Impedance ( $Z_{0}$ )	$75 Ohms (Ω)$	Standard for video (e.g., CCTV, composite video) applications.
Center Conductor	20 – 22 AWG (American Wire Gauge)	Smaller than RG6, often Copper-Clad Steel (CCS) or solid bare copper.
Capacitance (Nominal)	$\approx 20 to 22 pF/ft$	Pico-Farads per foot.
Velocity of Propagation (VoP)	$66% to 85%$ (Depending on the dielectric material used)	The speed of the signal as a percentage of the speed of light.
Maximum Voltage Rating	Up to $\approx 2300 V_{RMS}$	(Root Mean Square)

Technical Specification

Key Characteristics and Specifications

Specification	Typical Value/Description	Context/Purpose
Characteristic Impedance	75 Ohms ( $Ω$ )	Standard for most video applications, minimizing signal reflections for optimal transfer.
Center Conductor Size	Smaller, often 20-22 AWG, typically Copper-Clad Steel (CCS) or solid bare copper.	Smaller size results in greater attenuation (signal loss) at high frequencies compared to RG6.
Shielding	Usually a single layer of braided wire (often copper or aluminum braid) and sometimes a foil layer.	Adequate for lower-frequency applications but less effective against high-frequency interference than the dual/quad shielding on RG6.
Frequency Range	Best for low-frequency applications (e.g., below 50 MHz).	High-frequency losses limit its effective distance for high-bandwidth signals.
Flexibility	Thinner (approx. 0.24 inches or 6.15 mm diameter) and more flexible than RG6.	Easier to bend, route through walls, and install in tight spaces.